Protection Worn to Prevent Inhaling Dirt Particles
Puzzle 9 of Safety First Hard Pack
Question is: Protection Worn to Prevent Inhaling Dirt Particles
and the answer is: DUSTMASK
Word Meaning:
DUST MASK — A protective mask which covers the mouth and nose of the wearer, worn when in a dusty atmosphere, or when doing work which creates dust.
Definitions from Wiktionary.